Amazon Q MCP Client sends unsupported 'explanation' parameter to MCP Server

[AmshegaR]

Problem

Amazon Q MCP Client adds an 'explanation' parameter when calling MCP tools, which causes FastMCP servers with strict parameter validation to reject requests with 'unexpected_keyword_argument' errors.
sooperset/mcp-atlassian#480

Steps to Reproduce

• MCP Client: Amazon Q plugin for IDE
• MCP Transport/Bridge: npm remote-mcp
• MCP Server: SSE exposed Jira endpoints

https://github.com/geelen/mcp-remote
https://github.com/sooperset/mcp-atlassian

Expected Behavior

Amazon Q should respect MCP tool schemas and only send defined parameters, or provide a configuration option to disable automatic parameter injection.

Current Workaround

Explicitly instruct Amazon Q in prompt not to use explanation: "Connect to Jira and get issue with Id PRO-1234 but do not use explanation."

System Details

• OS: Windows_NT x64 10.0.22631
• Visual Studio Code: 1.100.0
• Amazon Q version: 1.77.0
• MCP Transport: npm remote-mcp